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-rw-r--r--config/ac-macros/alloca.m468
1 files changed, 0 insertions, 68 deletions
diff --git a/config/ac-macros/alloca.m4 b/config/ac-macros/alloca.m4
deleted file mode 100644
index 8c730dd671f..00000000000
--- a/config/ac-macros/alloca.m4
+++ /dev/null
@@ -1,68 +0,0 @@
-AC_DEFUN([MYSQL_FUNC_ALLOCA],
-[
-# Since we have heard that alloca fails on IRIX never define it on a
-# SGI machine
-if test ! "$host_vendor" = "sgi"
-then
- AC_REQUIRE_CPP()dnl Set CPP; we run AC_EGREP_CPP conditionally.
- # The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
- # for constant arguments. Useless!
- AC_CACHE_CHECK([for working alloca.h], ac_cv_header_alloca_h,
- [AC_TRY_LINK([#include <alloca.h>], [char *p = alloca(2 * sizeof(int));],
- ac_cv_header_alloca_h=yes, ac_cv_header_alloca_h=no)])
- if test "$ac_cv_header_alloca_h" = "yes"
- then
- AC_DEFINE(HAVE_ALLOCA, 1)
- fi
-
- AC_CACHE_CHECK([for alloca], ac_cv_func_alloca_works,
- [AC_TRY_LINK([
- #ifdef __GNUC__
- # define alloca __builtin_alloca
- #else
- # if HAVE_ALLOCA_H
- # include <alloca.h>
- # else
- # ifdef _AIX
- #pragma alloca
- # else
- # ifndef alloca /* predefined by HP cc +Olibcalls */
- char *alloca ();
- # endif
- # endif
- # endif
- #endif
- ], [char *p = (char *) alloca(1);],
- ac_cv_func_alloca_works=yes, ac_cv_func_alloca_works=no)])
- if test "$ac_cv_func_alloca_works" = "yes"; then
- AC_DEFINE([HAVE_ALLOCA], [1], [If we have a working alloca() implementation])
- fi
-
- if test "$ac_cv_func_alloca_works" = "no"; then
- # The SVR3 libPW and SVR4 libucb both contain incompatible functions
- # that cause trouble. Some versions do not even contain alloca or
- # contain a buggy version. If you still want to use their alloca,
- # use ar to extract alloca.o from them instead of compiling alloca.c.
- ALLOCA=alloca.o
- AC_DEFINE(C_ALLOCA, 1)
-
- AC_CACHE_CHECK(whether alloca needs Cray hooks, ac_cv_os_cray,
- [AC_EGREP_CPP(webecray,
- [#if defined(CRAY) && ! defined(CRAY2)
- webecray
- #else
- wenotbecray
- #endif
- ], ac_cv_os_cray=yes, ac_cv_os_cray=no)])
- if test "$ac_cv_os_cray" = "yes"; then
- for ac_func in _getb67 GETB67 getb67; do
- AC_CHECK_FUNC($ac_func, [AC_DEFINE_UNQUOTED(CRAY_STACKSEG_END, $ac_func)
- break])
- done
- fi
- fi
- AC_SUBST(ALLOCA)dnl
-else
- AC_MSG_RESULT("Skipped alloca tests")
-fi
-])